IMPROVING STUDENTS’ VOCABULARY MASTERY USING VOCABULARY TREE

Abstract

The main aims of this study was to examine the effectiveness of vocabulary trees to improve students’ vocabulary mastery. The researcher used quasi experimental as the research method in order to investigate whether students' vocabulary mastery in experimental class can improve gradually after receiving treatment by using vocabulary trees, The researcher used a pre-test and a final test by involving 60 students as sample where they divided into 2 groups. The researcher used t-test to analyze data and conducted hypothesis testing. This finding of this study showed that t0 > tt or 5.39 > 1.67. It means that the the alternative hypothesis (Ha) was accepted while the null hypothesis (H0) was also rejected. In other words, it may be concluded that there was significant effect of using vocabulary trees to improve students' vocabulary at the eighth grade of SMP Al-Irsyad Waringinkurung Serang regency. In addition, in qualitative sense, the finding of this study also revealed that vocabulary tree was very flexibility and east to use for students in learning process by giving opportunity to them to fill the vocabulary tree with appropriate words that related to the figure or place being described as well as it can be adapted to the material and learning objectives in the syllabus.